GSLV Mk-I

Geosynchronous Satellite Launch Vehicle
Fact sheet

Function ----Expendable launch vehicle

Manufacturer----ISRO

Country of origin----India

Size
Height 49 m (160 ft)

Diameter 2.8 m (9.1 ft)
Mass 402,000 kg kg (886,000 lb)

Stages 3
Capacity
Payload to LEO
5,000 kg (11,000 lb)
Payload to
GTO
2,500 kg (5,500 lb)
Launch History
Status Active
Launch sites Sriharikota

Total launches 5
Successes 3
Failures 1
Partial failures 1
Maiden flight 18 April 2001

Boosters (Stage 0)
No boosters 4
Engines 1 L40H Vikas 2

Thrust 680 kN

Total thrust 2,720 kN
Specific impulse
262 sec
Burn time 160 seconds
Fuel N2O4/UDMH

First Stage
Engines 1 S125

Thrust
4,700 kN

Specific impulse
166 sec
Burn time 100 seconds
Fuel HTPB (solid)

Second Stage
Engines 1 GS2 Vikas 4

Thrust 720 kN
Specific impulse
295 sec
Burn time 150 seconds
Fuel N2O4/UDMH

Third Stage
Engines 1 RD-56M

Thrust 73.5 kN
Specific impulse
460 sec
Burn time 720 seconds
Fuel LOX/LH2